It's just a different implementation of exactly the same idea. I've used every parametric CAD software that exists (more or less) and their sketch constraint solvers are generally indistinguishable. They only differ in small details - can you select the midpoint of a line? can you have mirror constraints? are they vaguely stable when underconstrained? etc.
SolveSpace has a little bit different constraints solver.
There is Assembly3 worbench for FreeCAD, which is based on SolveSpace solver.[0]
[0] https://github.com/realthunder/FreeCAD_assembly3/wiki/Constr...